Unreal® Engine VR Cookbook: Developing Virtual Reality with UE4

Chapter 6. Unreal Motion Graphics and 2D User Interfaces

Besides being primarily a 3D medium, a 2D UI still provides a convenient way to show users in VR relatively large amounts of information or allow for familiar interaction paradigms. This chapter looks at some of the challenges with 2D UI in VR and shows how to implement an Unreal Motion Graphics (UMG) interaction system from scratch. It also shows you how to integrate this system into other interaction systems.

Challenges with 2D UI in VR

Creating UIs in VR leads to some tricky problems that don’t arise in traditional two-dimensional games. First, in traditional games, many UIs are head-locked (attached to the player’s in-game head so wherever that moves, the UI follows). This behavior ...